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RESULTS

(10)

DISEASE: Bacterial blast and black pit

HOST: Citrus (Lemon)

The term "black pit" refers to black lesions on fruit, which may be specks or large, sunken pits as seen here. They also may be light tan, later becoming reddish brown to black.

DISEASE: Bacterial wilt

HOST: Ginger

Blackening of pith and cortex of rhizome.

DISEASE: Bacterial wilt

HOST: Ginger

Field of wilted ginger plants.

DISEASE: Bacterial wilt

HOST: Ginger

Ginger plants with yellowing, marginal necrosis, and downward curling of infected leaves, in contrast to darker, fully expanded healthy leaves.

DISEASE: Bacterial wilt

HOST: Ginger

Cupping and leaf necrosis precedes wilt and death of plants.

DISEASE: Bacterial wilt

HOST: Ginger

Typical symptoms of bacterial wilt in ginger plantations, Kerala, India.

DISEASE: Citrus canker

HOST: Citrus (Lemon)

Lower leaf with raised, corkylike lesions surrounded by dark brown halos, one of the diagnostic symptoms of citrus canker.

DISEASE: Halo blight

HOST: Bean

Leaves of highly susceptible 'Red Kidney' dry bean with typical water-soaked lesions with halos.

DISEASE: Halo blight

HOST: Bean

'Red Kidney' (dry bean) exhibiting tolerant reaction after inoculation with a halo blight strain. The small, dark lesions dry up in a few days and disease does not progress further.